Book Image

Blockchain Development for Finance Projects

By : Ishan Roy
Book Image

Blockchain Development for Finance Projects

By: Ishan Roy

Overview of this book

Blockchain technology will continue to play an integral role in the banking and finance sector in the coming years. It will enable enterprises to build transparent and secure business processes. Experts estimate annual savings of up to 20 billion dollars from this technology. This book will help you build financial apps using blockchain, guiding you through enhancing popular products and services in the banking and finance sector. The book starts by explaining the essential concepts of blockchain, and the impact of blockchain technology on the BFSI sector. Next, you'll delve into re-designing existing banking processes and building new financial apps using blockchain. To accomplish this, you'll work through eight blockchain projects. By demonstrating the entire process, the book helps you understand everything from setting up the environment and building frontend portals to system integration and testing apps. You will gain hands-on experience with the Ethereum, Hyperledger Fabric, and Stellar to develop private and public decentralized apps. Finally, you'll learn how to use ancillary platforms and frameworks such as IPFS, Truffle OpenZeppelin, and MetaMask. By the end of this blockchain book, you'll have an in-depth understanding of how to leverage distributed ledgers and smart contracts for financial use cases.
Table of Contents (17 chapters)
1
Section 1: Blockchain Payments and Remittances
7
Section 2: Blockchain Workflows Using Smart Contracts
9
Section 3: Securing Digital Documents and Files Using Blockchain
11
Section 4: Decentralized Trading Exchanges Using Blockchain
Appendix: Application Checklist

Setting up the callbacks server

The callbacks server implements a set of endpoints that can be called by the other components of the bank infrastructure to fetch data from or update data to the bank's internal databases.

It implements the following endpoints:

  • /compliance/fetch_info: Fetches the customer's name, address, and date of birth when provided the friendlyID of the customer from the users table
  • /compliance/sanction: Validates whether the sender's financial institution is sanctioned to send transactions from the sanctions table
  • /compliance/ask_user: Checks whether the receiving bank will send the beneficiary's KYC details to the sending bank (fetch_info is then called to fetch the details)
  • /receive: Captures details about received payments and updates the beneficiary's balance

The first three are called by the compliance server for compliance...